flake-parts: Almost done with yggdrasil

modules/server/hydra.nix

@@ -0,0 +1,25 @@
+{
+  flake.modules.nixos.hydra =
+    { ... }:
+    let
+      httpPort = 2000;
+    in
+    {
+      services.nix-serve = {
+        enable = true;
+        secretKeyFile = "/var/cache-priv-key.pem";
+      };
+
+      services.hydra = {
+        enable = true;
+        hydraURL = "http://localhost:${toString httpPort}";
+        port = httpPort;
+        notificationSender = "hydra@localhost";
+        useSubstitutes = true;
+        extraConfig = ''
+          allow-import-from-derivation = 1
+        '';
+      };
+
+    };
+}